can anybody tel me how a vfd or any field instrument
communicates/interface with plc/scada/cs.
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How to calibrate the control valve.
hi vishok this is noor plz tell me what type problems will occured i use T/C in the place of RTD in (FEED WATER TANK),plz send ur e-mail address to my ID (mail2noor.hyd@gmail.com)
if I did short to both AO connections, channel will burn or what? m sure in AI it will damage to channel. But what will happens in AO?
kindly tell where orifice,nozzle,air foil,ventury used in flow measurement?
what is the difference between two wire transmitter and 4- wire transmitter
what is earthing ,grounding in c&i panel?what is the resistance in earthing and grounding of c&i panel?what do u mean by shielding and what is its resistance?
What is the difference between pt100, pt500 and pt1000 RTDs?
Single acting ON-OFF valve. it is air to open. when sov energized , valve will be open, so during that if air fail then what will be the condition of valve ( open or close ) ???
Can be operate control valve without positioning if yes ? how and why?
Q1]IF THE RANGE FOR FLOW IS -35 TO 125 WHAT WILL BE THE SPAN FOR ABSOLUTE AND FOR NORMAL? Q2]HOW TO CALIBRATE CAPILLARY TYPE LT? Q3]HOW MANY ERROR CALCULATIONS ARE THERE USED IN PROCESS INDUSTRIES? Q4]HOW TO CALIBRATE TEMPERATURE TRANSMITTER? Q5] HOW TO CALIBRATE LEVEL TROLL AND HOW TO CONNECT? Q6]PLEASE TELL ME THE BASIC FOR INSTRUMENTATION WHICH IS APPLIED FOR CALIBRATION AND FOR ALL? PLEASE MAIL THE ANSWER TO honest_yes@yahoo.in
How can we measure the level of a closed system like drum
what is the difference about HART, and 4-20mA signal?